22801836 has 12 divisors (see below), whose sum is σ = 53204312. Its totient is φ = 7600608.

The previous prime is 22801829. The next prime is 22801853. The reversal of 22801836 is 63810822.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 950065 + ... + 950088.

Almost surely, 2^22801836 is an apocalyptic number.

It is an amenable number.

22801836 is an abundant number, since it is smaller than the sum of its proper divisors (30402476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22801836 is a wasteful number, since it uses less digits than its factorization.

22801836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900160 (or 1900158 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 22801836 is about 4775.1268045990. The cubic root of 22801836 is about 283.5675989463.

The spelling of 22801836 in words is "twenty-two million, eight hundred one thousand, eight hundred thirty-six".